Cove base



FIG. 1 is a side elevation view of the cove base showing my new design;

FIG. 2 is a front elevation view of the invention thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a side elevation view thereof.

The broken line showing of the back support structure and adjoining title element in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a cove base, as shown and described. 